IC REG 5V 500MA LDO LN 8SOIC

 

LT1763CS8-5#TR

Manufacturer Part NumberLT1763CS8-5#TR
DescriptionIC REG 5V 500MA LDO LN 8SOIC
ManufacturerLinear Technology
LT1763CS8-5#TR datasheets

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Specifications of LT1763CS8-5#TR

Regulator TopologyPositive FixedVoltage - Output5V
Voltage - InputUp to 20VVoltage - Dropout (typical)0.3V @ 500mA
Number Of Regulators1Current - Output500mA
Current - Limit (min)520mAOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
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FEATURES
n
Low Noise: 20μV
(10Hz to 100kHz)
RMS
n
Output Current: 500mA
n
Low Quiescent Current: 30μA
n
Wide Input Voltage Range: 1.8V to 20V
n
Low Dropout Voltage: 300mV
n
Very Low Shutdown Current: < 1μA
n
No Protection Diodes Needed
n
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V
n
Adjustable Output from 1.22V to 20V
n
Stable with 3.3μF Output Capacitor
n
Stable with Aluminum, Tantalum or Ceramic
Capacitors
n
Reverse Battery Protection
n
No Reverse Current
n
Overcurrent and Overtemperature Protected
n
8-Lead SO and 12-Lead (4mm × 3mm) DFN
Packages
APPLICATIONS
n
Cellular Phones
n
Battery-Powered Systems
n
Noise-Sensitive Instrumentation Systems
TYPICAL APPLICATION
3.3V Low Noise Regulator
IN
OUT
V
IN
3.7V TO
1μF
SENSE
20V
LT1763-3.3
SHDN
BYP
GND
500mA, Low Noise, LDO
Micropower Regulators
DESCRIPTION
®
The LT
1763 series are micropower, low noise, low dropout
regulators. The devices are capable of supplying 500mA of
output current with a dropout voltage of 300mV. Designed
for use in battery-powered systems, the low 30μA quiescent
current makes them an ideal choice. Quiescent current is
well controlled; it does not rise in dropout as it does with
many other regulators.
A key feature of the LT1763 regulators is low output noise.
With the addition of an external 0.01μF bypass capacitor,
output noise drops to 20μV
bandwidth. The LT1763 regulators are stable with output
capacitors as low as 3.3μF. Small ceramic capacitors can
be used without the series resistance required by other
regulators.
Internal protection circuitry includes reverse battery
protection, current limiting, thermal limiting and reverse
current protection. The parts come in fi xed output voltages
of 1.5V, 1.8V, 2.5V, 3V, 3.3V and 5V, and as an adjustable
device with a 1.22V reference voltage. The LT1763
regulators are available in 8-lead SO and 12-lead, low
profi le (4mm × 3mm × 0.75mm) DFN packages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents including 6144250, 6118263.
3.3V AT 500mA
+
20μV
NOISE
RMS
10μF
0.01μF
1763 TA01
LT1763 Series
over a 10Hz to 100kHz
RMS
Dropout Voltage
400
350
300
250
200
150
100
50
0
0
100
200
300
400
500
OUTPUT CURRENT (mA)
1763 TA02
1763fg
1

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LT1763CS8-5#TR Summary of contents

  • Page 1

    ... DFN packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6144250, 6118263. ...

  • Page 2

    LT1763 Series ABSOLUTE MAXIMUM RATINGS IN Pin Voltage ........................................................ ±20V OUT Pin Voltage ..................................................... ±20V Input to Output Differential Voltage ........................ ±20V SENSE Pin Voltage ............................................... ±20V ADJ Pin Voltage ...................................................... ±7V BYP Pin Voltage .....................................................±0.6V SHDN Pin Voltage ................................................ ...

  • Page 3

    ... LT1763IS8-1.5#TRPBF LT1763CS8-1.8#PBF LT1763CS8-1.8#TRPBF LT1763IS8-1.8#PBF LT1763IS8-1.8#TRPBF LT1763CS8-2.5#PBF LT1763CS8-2.5#TRPBF LT1763IS8-2.5#PBF LT1763IS8-2.5#TRPBF LT1763CS8-3#PBF LT1763CS8-3#TRPBF LT1763IS8-3#PBF LT1763IS8-3#TRPBF LT1763CS8-3.3#PBF LT1763CS8-3.3#TRPBF LT1763IS8-3.3#PBF LT1763IS8-3.3#TRPBF LT1763CS8-5#PBF LT1763CS8-5#TRPBF LT1763IS8-5#PBF LT1763IS8-5#TRPBF LEAD BASED FINISH TAPE AND REEL LT1763CDE LT1763CDE#TR LT1763IDE LT1763IDE#TR LT1763MPDE LT1763MPDE#TR LT1763CDE-1.5 LT1763CDE-1.5#TR LT1763IDE-1.5 LT1763IDE-1.5#TR LT1763MPDE-1.5 LT1763MPDE-1.5#TR LT1763CDE-1.8 LT1763CDE-1.8#TR LT1763IDE-1 ...

  • Page 4

    ... LT1763CS8-3.3 LT1763CS8-3.3#TR LT1763IS8-3.3 LT1763IS8-3.3#TR LT1763CS8-5 LT1763CS8-5#TR LT1763IS8-5 LT1763IS8-5#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...

  • Page 5

    ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER CONDITIONS ADJ Pin Voltage LT1763 (Notes 3, 4) Line Regulation LT1763-1.5 LT1763-1.5 LT1763-1.8 LT1763-2.5 LT1763-3 LT1763-3.3 LT1763-5 LT1763 (Note Grade: ΔV LT1763 (Note 3) MP Grade: ...

  • Page 6

    LT1763 Series ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER CONDITIONS Current Limit Grade Grade: V Input Reverse Leakage Current V = –20V Reverse Output Current ...

  • Page 7

    TYPICAL PERFORMANCE CHARACTERISTICS Typical Dropout Voltage 500 450 400 T = 125°C J 350 300 250 T = 25°C J 200 150 100 100 150 200 250 300 350 400 450 500 OUTPUT CURRENT (mA) 1763 ...

  • Page 8

    LT1763 Series TYPICAL PERFORMANCE CHARACTERISTICS LT1763-5 Output Voltage 5.100 I = 1mA L 5.075 5.050 5.025 5.000 4.975 4.950 4.925 4.900 –50 – 100 TEMPERATURE (°C) 1763 G10 LT1763-1.8 Quiescent Current 250 T = 25°C J ...

  • Page 9

    TYPICAL PERFORMANCE CHARACTERISTICS LT1763-1.5 GND Pin Current 1200 1000 R = 30Ω 50mA* 800 25° SHDN IN 600 *FOR V = 1.5V OUT R = 150Ω 400 ...

  • Page 10

    LT1763 Series TYPICAL PERFORMANCE CHARACTERISTICS LT1763-2.5 GND Pin Current 25° SHDN IN 10 *FOR V = 2.5V OUT R = 5Ω 500mA 8.33Ω ...

  • Page 11

    TYPICAL PERFORMANCE CHARACTERISTICS SHDN Pin Input Current 1 20V SHDN 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 –50 – 100 TEMPERATURE (°C) 1763 G37 Current Limit 1 ...

  • Page 12

    LT1763 Series TYPICAL PERFORMANCE CHARACTERISTICS LT1763 Minimum Input Voltage 2.50 2. 500mA L 2.00 1. 1mA 1.50 L 1.25 1.00 0.75 0.50 0. 1.22V OUT 0 50 –50 – 100 TEMPERATURE ...

  • Page 13

    TYPICAL PERFORMANCE CHARACTERISTICS LT1763-5 10Hz to 100kHz Output Noise C = 0.01μF BYP V OUT 100μV/DIV 1763 G55 1ms/DIV C = 10μF OUT I = 500mA L LT1763-5 Transient Response BYP 0.4 C ...

  • Page 14

    LT1763 Series PIN FUNCTIONS (DE12/S8) NC (Pins 12) DE12 Only: No Connect. No connect pins have no connection to any internal circuitry. These pins may be tied to either GND or V OUT (Pins 2, 3/Pin 1): ...

  • Page 15

    APPLICATIONS INFORMATION The LT1763 series are 500mA low dropout regulators with micropower quiescent current and shutdown. The devices are capable of supplying 500mA at a dropout voltage of 300mV. Output voltage noise can be lowered to 20μV over a 10Hz ...

  • Page 16

    LT1763 Series APPLICATIONS INFORMATION Output Capacitance and Transient Response The LT1763 regulators are designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability, most notably with small capaci- tors. A minimum ...

  • Page 17

    APPLICATIONS INFORMATION Y5V and Z5U capacitors, but can still be signifi cant enough to drop capacitor values below appropriate levels. Capacitor DC bias characteristics tend to improve as component case size increases, but expected capacitance at operating voltage should be ...

  • Page 18

    LT1763 Series APPLICATIONS INFORMATION Table 2. SO-8 Package, 8-Lead SO COPPER AREA TOPSIDE* BACKSIDE BOARD AREA 2500mm 2500mm 2500mm 1000mm 2500mm 2500mm 225mm 2500mm 2500mm 100mm 2500mm 2500mm ...

  • Page 19

    APPLICATIONS INFORMATION The top resistor of the resistor divider must be chosen to limit the current into the ADJ pin to less than 5mA when the ADJ pin is at 7V. The 13V difference between output and ADJ pin divided ...

  • Page 20

    LT1763 Series PACKAGE DESCRIPTION 0.70 0.05 3.30 0.05 3.60 0.05 2.20 0.05 1.70 0.05 0.25 0.05 0.50 BSC 2.50 REF RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED NOTE: 1. DRAWING PROPOSED TO ...

  • Page 21

    ... Added LT3085 to Related Parts Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LT1763 Series ...

  • Page 22

    ... C5 R6 0.01μ 1.21k 1763 TA03 , SOT-223 Package Q , 0.26V Dropout Voltage, SOT-223 Package Q , Reverse Battery Protection Q Noise, ThinSOT™ RMS Noise, MS8 RMS , MS8 RML , DD, TO220, S8, SOT-223 RML LT 0510 REV G • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1999 1763fg ...

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